FULC
Fulcrum Therapeutics Inc
NASDAQ: FULC · HEALTHCARE · BIOTECHNOLOGY
$3.75
+1.35% today
Updated 2026-10-28
Market cap
$282.61M
P/E ratio
—
P/S ratio
2.66x
EPS (TTM)
$-1.21
Dividend yield
—
52W range
$3 – $16
Volume
1.4M
Fulcrum Therapeutics Inc (FULC) Insider transactions
Net insider activity
Net buying (4,786,208 shares)
Buy transactions
82
Sell transactions
18
All transactions
| Date | Insider | Title | Type | Shares | Price | Value |
|---|---|---|---|---|---|---|
| 2026-07-17 | TANG, KEVIN | 10% Owner | Buy | 50,945 | $3.52 | $179326.40 |
| 2026-07-16 | TANG, KEVIN | 10% Owner | Buy | 116,671 | $3.56 | $415348.76 |
| 2026-07-15 | TANG, KEVIN | 10% Owner | Buy | 107,377 | $3.56 | $382262.12 |
| 2026-07-14 | TANG, KEVIN | 10% Owner | Buy | 75,952 | $3.58 | $271908.16 |
| 2026-07-14 | TANG, KEVIN | 10% Owner | Buy | 53,651 | $3.56 | $190997.56 |
| 2026-07-13 | TANG, KEVIN | 10% Owner | Buy | 12,966 | $3.54 | $45899.64 |
| 2026-06-30 | KING, RACHEL K. | Director | Buy | 32,000 | — | — |
| 2026-06-30 | HILL, COLIN | Director | Buy | 32,000 | — | — |
| 2026-06-30 | HAVILAND, KATE | Director | Buy | 32,000 | — | — |
| 2026-06-30 | GOULD, ROBERT J | Director | Buy | 32,000 | — | — |
| 2026-06-30 | GERAGHTY, JAMES A | Director | Buy | 32,000 | — | — |
| 2026-06-30 | EZEKOWITZ, ALAN | Director | Buy | 32,000 | — | — |
| 2026-06-30 | DORTON, KATINA | Director | Buy | 32,000 | — | — |
| 2026-06-30 | BANKS, SONJA | Director | Buy | 32,000 | — | — |
| 2026-06-26 | EZEKOWITZ, ALAN | Director | Sale | 18,000 | $3.65 | $65613.60 |
| 2026-04-23 | LEHRER-GRAIWER, JOSHUA | Director | Buy | 64,000 | — | — |
| 2026-02-02 | TOURANGEAU, GREG | Principal Accounting Officer | Buy | 57,000 | — | — |
| 2026-02-02 | SAPIR, ALEX | Director, See Remarks | Buy | 650,000 | — | — |
| 2026-02-02 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 170,000 | — | — |
| 2026-02-02 | MUSSO, ALAN A | Chief Financial Officer | Buy | 170,000 | — | — |
| 2026-02-02 | GOULD, ROBERT J | Director | Sale | 15,000 | $10.72 | $160857.00 |
| 2026-01-02 | GOULD, ROBERT J | Director | Sale | 15,000 | $10.87 | $163089.00 |
| 2025-12-15 | OLTMANS, CURTIS GALE | Chief Legal Officer | Sale | 3,452 | $12.92 | $44599.84 |
| 2025-12-08 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Sale | 2,706,397 | $14.28 | $38.65M |
| 2025-12-08 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Sale | 1,377,020 | $13.33 | $18.36M |
| 2025-12-08 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Sale | 91,722 | $14.98 | $1.37M |
| 2025-11-19 | GOULD, ROBERT J | Director | Sale | 15,000 | $11.03 | $165495.00 |
| 2025-06-26 | KING, RACHEL K. | Director | Buy | 36,000 | — | — |
| 2025-06-26 | HILL, COLIN | Director | Buy | 36,000 | — | — |
| 2025-06-26 | HAVILAND, KATE | Director | Buy | 36,000 | — | — |
| 2025-06-26 | GOULD, ROBERT J | Director | Buy | 36,000 | — | — |
| 2025-06-26 | GERAGHTY, JAMES A | Director | Buy | 36,000 | — | — |
| 2025-06-26 | EZEKOWITZ, ALAN | Director | Buy | 36,000 | — | — |
| 2025-06-26 | DORTON, KATINA | Director | Buy | 36,000 | — | — |
| 2025-06-26 | BANKS, SONJA | Director | Buy | 36,000 | — | — |
| 2025-05-08 | TOURANGEAU, GREG | Principal Accounting Officer | Sale | 498 | $5.06 | $2519.88 |
| 2025-01-24 | TOURANGEAU, GREG | Principal Accounting Officer | Buy | 76,120 | — | — |
| 2025-01-24 | SAPIR, ALEX | Director, See Remarks | Buy | 582,000 | — | — |
| 2025-01-24 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 225,000 | — | — |
| 2025-01-24 | MUSSO, ALAN A | Chief Financial Officer | Buy | 285,000 | — | — |
| 2024-11-12 | KING, RACHEL K. | Director | Buy | 60,000 | — | — |
| 2024-08-21 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 8,500,000 | — | — |
| 2024-08-21 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Sale | 8,500,000 | — | — |
| 2024-07-03 | SAPIR, ALEX | Director, See Remarks | Sale | 150,000 | — | — |
| 2024-07-03 | SAPIR, ALEX | Director, See Remarks | Buy | 150,000 | $3.27 | $490500.00 |
| 2024-06-17 | HILL, COLIN | Director | Buy | 60,000 | — | — |
| 2024-06-17 | HAVILAND, KATE | Director | Buy | 30,000 | — | — |
| 2024-06-17 | GOULD, ROBERT J | Director | Buy | 30,000 | — | — |
| 2024-06-17 | GERAGHTY, JAMES A | Director | Buy | 30,000 | — | — |
| 2024-06-17 | EZEKOWITZ, ALAN | Director | Buy | 30,000 | — | — |
| 2024-06-17 | DORTON, KATINA | Director | Buy | 30,000 | — | — |
| 2024-06-17 | COLLINS, JAMES J. | Director | Buy | 30,000 | — | — |
| 2024-06-17 | BANKS, SONJA | Director | Buy | 30,000 | — | — |
| 2024-05-07 | TOURANGEAU, GREG | Principal Accounting Officer | Sale | 236 | $7.76 | $1831.36 |
| 2024-03-18 | HORN, PATRICK TAYLOR | Chief Medical Officer | Buy | 400,000 | — | — |
| 2024-03-08 | TOURANGEAU, GREG | Vice President, Finance | Sale | 4,884 | $11.72 | $57218.50 |
| 2024-03-04 | SAPIR, ALEX | Director, See Remarks | Buy | 43,360 | $11.35 | $492027.60 |
| 2024-01-26 | TOURANGEAU, GREG | Vice President, Finance | Buy | 83,820 | — | — |
| 2024-01-26 | TOURANGEAU, GREG | Vice President, Finance | Buy | 10,000 | — | — |
| 2024-01-26 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 150,000 | — | — |
| 2024-01-26 | MUSSO, ALAN A | Chief Financial Officer | Buy | 100,000 | — | — |
| 2024-01-17 | MUSSO, ALAN A | Chief Financial Officer | Buy | 61,822 | — | — |
| 2023-08-07 | MUSSO, ALAN A | Chief Financial Officer | Buy | 432,800 | — | — |
| 2023-06-27 | HAVILAND, KATE | Director | Buy | 30,000 | — | — |
| 2023-06-27 | GOULD, ROBERT J | Director, Interim President & CEO | Buy | 30,000 | — | — |
| 2023-06-27 | GERAGHTY, JAMES A | Director | Buy | 30,000 | — | — |
| 2023-06-27 | EZEKOWITZ, ALAN | Director | Buy | 30,000 | — | — |
| 2023-06-27 | DORTON, KATINA | Director | Buy | 30,000 | — | — |
| 2023-06-27 | COLLINS, JAMES J. | Director | Buy | 30,000 | — | — |
| 2023-06-27 | BANKS, SONJA | Director | Buy | 30,000 | — | — |
| 2023-05-10 | TOURANGEAU, GREG | Principal Accounting Officer | Sale | 210 | $3.31 | $695.10 |
| 2023-04-26 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 127,500 | — | — |
| 2023-04-26 | HAYES, MELVIN H. III | Chief Operating Officer | Buy | 115,000 | — | — |
| 2023-02-09 | TOURANGEAU, GREG | Controller | Buy | 16,100 | — | — |
| 2023-02-09 | RAJAVELU, ESTHER | Chief Financial Officer | Buy | 160,000 | — | — |
| 2023-02-09 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 150,000 | — | — |
| 2023-02-09 | HAYES, MELVIN H. III | Chief Operating Officer | Buy | 135,000 | — | — |
| 2023-01-20 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 1,923,076 | $13.00 | $25.00M |
| 2023-01-13 | GOULD, ROBERT J | Director, Interim President & CEO | Sale | 6,766 | $15.00 | $101490.00 |
| 2023-01-04 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 122,334 | $7.03 | $859714.42 |
| 2023-01-04 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 58,369 | $7.80 | $455091.42 |
| 2022-12-27 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 4,089 | $5.99 | $24509.87 |
| 2022-12-19 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 98,787 | $5.90 | $582813.66 |
| 2022-12-16 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 1,341,420 | $5.42 | $7.27M |
| 2022-12-15 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 237,029 | $5.50 | $1.30M |
| 2022-12-14 | RA, CAPITAL MANAGEMENT, L.P. | 10% Owner | Buy | 824,600 | $5.46 | $4.50M |
| 2022-12-13 | THIRD, ROCK VENTURES III, L.P. | 10% Owner | Sale | 2,000,000 | — | — |
| 2022-11-07 | ARROYO, SANTIAGO | Chief Medical Officer | Buy | 400,000 | — | — |
| 2022-08-09 | OLTMANS, CURTIS GALE | Chief Legal Officer | Buy | 50,000 | — | — |
| 2022-08-09 | HAYES, MELVIN H. III | Chief Operating Officer | Buy | 137,000 | — | — |
| 2022-07-15 | TOURANGEAU, GREG | Controller | Buy | 16,540 | — | — |
| 2022-06-28 | EZEKOWITZ, ALAN | Director | Sale | 500 | — | — |
| 2022-06-27 | HAVILAND, KATE | Director | Buy | 19,000 | — | — |
| 2022-06-27 | GOULD, ROBERT J | Director | Buy | 19,000 | — | — |
| 2022-06-27 | GERAGHTY, JAMES A | Director | Buy | 19,000 | — | — |
| 2022-06-27 | EZEKOWITZ, ALAN | Director | Buy | 19,000 | — | — |
| 2022-06-27 | DORTON, KATINA | Director | Buy | 19,000 | — | — |
| 2022-06-27 | COLLINS, JAMES J. | Director | Buy | 19,000 | — | — |
| 2022-06-27 | BANKS, SONJA | Director | Buy | 19,000 | — | — |
| 2022-06-07 | GOULD, ROBERT J | Director | Sale | 71,435 | — | — |
Frequently asked questions
Are FULC insiders buying or selling?
Over the transactions on record, FULC insiders have been net buyers, with about $59.14M in stock sold across 18 sales, against 16 open-market purchases.
Does insider selling at FULC mean the stock will fall?
Not by itself. Most executive selling is pre-scheduled through 10b5-1 plans filed months in advance, and insiders sell for diversification, taxes, and liquidity far more often than out of any view on the price. Insider buying is the stronger signal, especially when several insiders buy around the same time, because there is usually only one reason to put personal cash into the stock.
Which FULC insiders are selling the most?
Recent selling is concentrated in a few names. RA, CAPITAL MANAGEMENT, L.P. accounts for the largest share on record, with about $58.38M sold. Selling by one or two individuals matters less than broad selling across the whole leadership team, which is the pattern worth watching.